BSD 4.4 Lite Kernel Sources

1 files changed, 100 insertions, 0 deletions

diff --git a/sys/kern/subr_xxx.c b/sys/kern/subr_xxx.c
new file mode 100644
index 0000000..c692ec1
--- /dev/null
+++ b/sys/kern/subr_xxx.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 1982, 1986, 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)subr_xxx.c	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Miscellaneous trivial functions, including many
+ * that are often inline-expanded or done in assembler.
+ */
+#include <sys/param.h>
+#include <sys/systm.h>
+
+#include <machine/cpu.h>
+
+/*
+ * Unsupported device function (e.g. writing to read-only device).
+ */
+enodev()
+{
+
+	return (ENODEV);
+}
+
+/*
+ * Unconfigured device function; driver not configured.
+ */
+enxio()
+{
+
+	return (ENXIO);
+}
+
+/*
+ * Unsupported ioctl function.
+ */
+enoioctl()
+{
+
+	return (ENOTTY);
+}
+
+/*
+ * Unsupported system function.
+ * This is used for an otherwise-reasonable operation
+ * that is not supported by the current system binary.
+ */
+enosys()
+{
+
+	return (ENOSYS);
+}
+
+/*
+ * Return error for operation not supported
+ * on a specific object or file type.
+ */
+eopnotsupp()
+{
+
+	return (EOPNOTSUPP);
+}
+
+/*
+ * Generic null operation, always returns success.
+ */
+nullop()
+{
+
+	return (0);
+}